On August 4th 2011, looks like Google updating its PageRank again, I found some of my sites PR increased. This is unconventional, does Google changed their habits that are generally updated its PageRank between three to four months to become more frequent?
Yes maybe now Google will display the PR changes as often as possible, let say once a month. I also experienced many changes in my inner pages, a popular article suddenly increases its PageRank.
Surprisingly there are a few domains that I register barely in a very short time its PageRank increased to PR6, or maybe its just a glitch.